David R. Mehr

Interventions to Increase Physical Activity Among Healthy Adults: Meta-Analysis of Outcomes

OBJECTIVES We conducted a meta-analysis summarizing the effects of interventions designed to increase physical activity among healthy adults. METHODS Our comprehensive searches located 358 reports eligible for inclusion. We used random-effects analyses to synthesize data, and we used meta-analytic analogues of regression and analysis of variance to examine potential moderator variables. We also explored moderator variable robustness and publication bias. RESULTS We computed meta-analytic results from studies comprising 99 011 participants. The overall mean effect size for comparisons of treatment groups versus control groups was 0.19 (higher mean for treatment participants than for control participants). This effect size is consistent with a mean difference of 496 ambulatory steps per day between treatment and control participants. Exploratory moderator analyses suggested that the characteristics of the most effective interventions were behavioral interventions instead of cognitive interventions, face-to-face delivery versus mediated interventions (e.g., via telephone or mail), and targeting individuals instead of communities. Participant characteristics were unrelated to physical activity effect sizes. Substantial between-studies heterogeneity remained beyond individual moderators. CONCLUSIONS Interventions designed to increase physical activity were modestly effective. Interventions to increase activity should emphasize behavioral strategies over cognitive strategies.

Clinical practice guideline for the evaluation of fever and infection in older adult residents of long-term care facilities: 2008 update by the Infectious Diseases Society of America.

Residents of long-term care facilities (LTCFs) are at great risk for infection. Most residents are older and have multiple comorbidities that complicate recognition of infection; for example, typically defined fever is absent in more than one-half of LTCF residents with serious infection. Furthermore, LTCFs often do not have the on-site equipment or personnel to evaluate suspected infection in the fashion typically performed in acute care hospitals. In recognition of the differences between LTCFs and hospitals with regard to hosts and resources present, the Infectious Diseases Society of America first provided guidelines for evaluation of fever and infection in LTCF residents in 2000. The guideline presented here represents the second edition, updated by data generated over the intervening 8 years. It focuses on the typical elderly person institutionalized with multiple chronic comorbidities and functional disabilities (e.g., a nursing home resident). Specific topic reviews and recommendations are provided with regard to what resources are typically available to evaluate suspected infection, what symptoms and signs suggest infection in a resident of an LTCF, who should initially evaluate the resident with suspected infection, what clinical evaluation should be performed, how LTCF staff can effectively communicate about possible infection with clinicians, and what laboratory tests should be ordered. Finally, a general outline of how a suspected outbreak of a specific infectious disease should be investigated in an LTCF is provided.

Interventions to Improve Medication Adherence Among Older Adults: Meta-Analysis of Adherence Outcomes Among Randomized Controlled Trials

PURPOSE This study investigated the effectiveness of interventions to improve medication adherence (MA) in older adults. DESIGN AND METHODS Meta-analysis was used to synthesize results of 33 published and unpublished randomized controlled trials. Random-effects models were used to estimate overall mean effect sizes (ESs) for MA, knowledge, health outcomes, and health services utilization. RESULTS Data were synthesized across 11,827 participants. Interventions significantly improved MA (ES = 0.33), knowledge (ES = 0.48), and diastolic blood pressure (ES = 0.19). Nonsignificant effects were found for systolic blood pressure (ES = 0.21), other health outcomes (ES = 0.04), and health services utilization (ES = 0.16). Moderator analyses showed larger adherence ESs for interventions employing special medication packaging, dose modification, participant monitoring of medication effects and side effects, succinct written instructions, and standardized (not tailored) interventions. Larger effects were found when a moderate proportion of participants were women, for participants taking 3-5 medications, and when pill count adherence was measured. IMPLICATIONS The findings document that interventions increase MA in older adults. The considerable heterogeneity in the magnitude of effects across studies and results of the moderator analyses demonstrate the need for additional empirical research to optimize interventions.

Nursing home care quality: a multidimensional theoretical model integrating the views of consumers and providers.

This exploratory study was undertaken to discover the defining dimensions of nursing home care quality from the viewpoint of consumers of nursing home care. Eleven focus groups were conducted in five Missouri communities. The seven dimensions of the consumer multidimensional model of nursing home care quality are: staff, care, family involvement, communication, environment, home, and cost. The views of consumers and families are compared with the results of a previous study of providers of nursing home services. An integrated, multidimensional theoretical model is presented for testing and evaluation. An instrument based on the model is being tested to observe and score the dimensions of nursing home care quality.

Comorbidity and 1-year mortality risks in nursing home residents.

Objectives: To investigate the effect of chronic diseases and disease combinations on 1‐year mortality in nursing home residents.

Clinical Outcomes of Aging in Place

BackgroundPrograms such as Medicaid Home and Community-based Services (HCBS) have provided an alternative to institutionalization through community-based, long-term care services; however, there are limited studies on the clinical outcomes of participants in these programs as compared to nursing home (NH) residents. ObjectiveTo compare clinical outcomes of individuals in a community-based, long-term care program to individuals of similar case mix in institutional-based, long-term care. MethodsA program called Aging in Place (AIP) was developed by the Sinclair School of Nursing in cooperation with the state of Missouris HCBS program. The AIP intervention consisted of nurse coordination of the HCBS program and Medicare home health services. A total of 78 AIP participants were matched with 78 NH residents on admission period, activities of daily living (ADLs), cognitive status, and age. The Minimum Data Set (MDS) was collected on the AIP group at admission and every 6 months over a 30-month period. Cognition was measured by the MDS Cognitive Performance Scale (CPS), ADLs by the sum of 5 MDS ADL items, depression by the MDS-Depression Rating Scale, and incontinence by rating on 2 MDS items related to urinary continence. The Cochran–Mantel–Haenszel method was used to test the association between the AIP intervention and clinical outcomes. ResultsThe AIP group clinical outcomes were better at a statistically significant level (less than .05) for the following outcomes: (a) cognition at 6, 12, and 18 months (p = .00); (b) depression at 6 and 12 months (p = .00); (c) ADL at 6 (p = .02), 12 (p = .04), and 24 (p = .00) months; and (d) incontinence at 24 (p = .02) months. In all 4 outcome measures, the AIP group stabilized or improved outcome scores whereas the NH groups outcome scores deteriorated. DiscussionStudy results suggest that community-based care with nurse coordination enhances clinical outcomes of long-term care participants.

Effect of Weight-Bearing Activity on Foot Ulcer Incidence in People With Diabetic Peripheral Neuropathy: Feet First Randomized Controlled Trial

Background: Weight-bearing exercise has been contraindicated among people with diabetic peripheral neuropathy (DM+PN). However, recent cohort studies have suggested that daily weight-bearing activity is associated with lower risk for foot ulceration. Objective: The objective of this study was to determine the effect of a lower-extremity exercise and walking intervention program on weight-bearing activity and foot ulcer incidence in people with DM+PN. Design: This was an observer-blinded, 12-month randomized controlled trial. Setting: The settings were physical therapy offices in part 1 of the intervention and the community in part 2 of the intervention. Participants: The participants were 79 individuals with DM+PN who were randomly assigned either to a control group (n=38) or an intervention group (n=41) group. Intervention: Intervention components included leg strengthening and balance exercises; a graduated, self-monitored walking program (part 1); and motivational telephone calls every 2 weeks (part 2). Both groups received diabetic foot care education, regular foot care, and 8 sessions with a physical therapist. Measurements: Total and exercise bout–related daily steps at baseline and at 3, 6, and 12 months were measured by accelerometers. Foot lesions/ulcers were photographed and classified by an independent panel of dermatologists. Use of adequate footwear was monitored. Results: At 6 months, bout-related daily steps increased 14% from baseline in the intervention group and decreased 6% from baseline in the control group. Although the groups did not differ statistically in the change in total daily steps, at 12 months steps had decreased by 13% in the control group. Foot ulcer rates did not differ significantly between groups. Conclusion: Promoting weight-bearing activity did not lead to significant increases in foot ulcers. Weight-bearing activity can be considered following adequate assessment and counseling of patients with DM+PN.

Metabolic effects of interventions to increase exercise in adults with type 2 diabetes

Aims/hypothesisThe aim of this meta-analysis was to integrate the results of primary research testing the effect of diabetes self-management interventions that included recommendations to increase exercise on metabolic outcomes among adults with type 2 diabetes.Materials and methodsExtensive literature searching strategies were used to identify published and unpublished intervention studies that measured glycated haemoglobin outcomes. Primary study results were coded. Fixed- and random-effects meta-analytic procedures included moderator analyses.ResultsData were synthesised across 10,455 subjects from 103 research reports. The overall mean weighted effect size for two-group comparisons was 0.29 (higher mean for treatment than control). This effect size is consistent with a difference in HbA1c means of 0.45% (e.g. 7.38% for treatment subjects vs 7.83% for control subjects). For single-group studies, the overall mean weighted effect size was 0.32–0.34. Control group subjects experienced no improvement in metabolic control during participation in the studies. Interventions that targeted multiple health behaviours resulted in smaller effect size estimates (0.22) than interventions that focused only on exercise behaviours (0.45). Funded studies reported greater improvements in metabolic controls. Studies with a greater proportion of female subjects reported lower effect sizes. Baseline HbA1c and BMI were unrelated to metabolic outcomes.Conclusions/interpretationThese findings suggest that self-management interventions that include exercise recommendations improve metabolic control, despite considerable heterogeneity in the magnitude of the intervention effect. Interventions that emphasise exercise may be especially effective in improving metabolic control. Primary research testing interventions in randomised trials to confirm causal relationships would be constructive.

Mental dysfunction and resource use in nursing homes.

The role of dementia and other mental disorders in nursing home case-mix classification systems has been an area of controversy. The role of mental dysfunctions was considered in developing a new case-mix measurement system for facility payment in a national demonstration to understand staff time use in nursing homes. Nursing staff (nurses and aides) time and resident assessment data were collected for 6,663 nursing home residents in 6 states. Measures of signs and symptoms of cognitive impairment (dementia), depression, and delirium were created based on items from the new National Minimum Data Set. These measures then were used to determine whether mental dysfunctions were predictive of resource use (nursing staff times and costs) when controlling for other case-mix variables. Cognitive impairment was associated with slightly higher staff time only in less physically-impaired residents without serious medical conditions and not receiving heavy rehabilitation. Similarly, depression and delirium were associated with higher resource use only in selected types of residents. Based on these findings, the new Resource Utilization Groups Version III (RUG-III) contain a major category of residents who are cognitively impaired but not severely dependent in Activities of Daily Living. Depression is used to differentiate subgroups of residents with major medical conditions such as hemiplegia and aphasia. Delirium, when used together with other resident characteristics, was not found useful in explaining resource use. Case-mix groups defined by mental dysfunctions can foster improved care, but careful consideration must be given to appropriate incentives and documentation requirements for providers.

Does hospitalization impact survival after lower respiratory infection in nursing home residents

Background:Lower respiratory infection (LRI) is the leading cause of hospitalization for nursing home residents, but hospitalization is costly and may cause complications. Objective:We sought to compare mortality and cost between episodes of LRI initially treated in the hospital versus the nursing home after controlling for illness severity and the probability of hospitalization. Design:This was a prospective cohort study of nursing home residents with LRIs. Subjects:We identified 1406 episodes of LRI in 36 nursing homes in central Missouri and the St. Louis area between August 15, 1995, and September 30, 1998. Economic analysis was restricted to 1033 episodes identified after March 31, 1997. Measures:We adjusted for the higher probability of initial hospitalization in sicker residents using measures of illness severity and a hospitalization propensity score. The propensity score was derived from a logistic regression model that included patient, physician, and facility variables. Estimated costs were attributed to initial treatment setting. Results:After controlling for the probability of hospitalization and illness severity, hospitalization was not a significant mortality predictor (odds ratio 0.89, 95% confidence interval 0.52–1.52). Mean daily cost was